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No. 6Il,300. Patented Sept. 27, I898. T. WEBSTER & A. E. BENNETT.

PROFILING MACHINE.

(Application filed Dec. 13, 1897.)

Sheets-Sheet I.

(No Model.)

Inventors TWEBSTERfi AEBBNN ETT,

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N0. 6ll,300. Patented Sept. 27, I898. T. WEBSTER-8L A. E. BENNETT.

PRDFILING MACHINE.

(Application filed Dec. 13 1897.)

3 Sheets-Sheet 2.

(No Model.)

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'mtnesses ATTORNEY.

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N6. 6l|,300. Patented Sept. 27, I898. T. WEBSTER & A. E. BENNETT.

PROFILING MACHINE. A ucakion filed Dec. 13, 1897.

3 Sheets-Sheet 3.

(No Model.)

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Witnesses m: NORRIS PETERS co. PHOTOJJTHOH wnsumsvcu. n. c.

' UNITED STATES PATENT OFFICE.

THOMAS \VEBSTER AND ARTHUR EDWARD BENNETT, OF COVENTR ENGLAND.

PROFlLlNG-IVlACHINE.

SPECIFICATION forming part of Letters Patent No. 611,300, dated September 27, 1898.

Application filed December 13, 1897. Serial No. 661,687. (No model.)

To all whom it may concern.-

Be it known that We,THOMAS WEBSTER and ARTHUR EDWARD BENNETT, subjects of the Queen of GreatBritain, and residents of Atlas Works, West Orchard, Coventry, England, have invented new and useful Improvements in Profiling-Machines, of which the following is a specification.

Our invention relates to improvements in profiling-machines; and its object is to provide improved means whereby articlessuch, for instance, as cycle-cranks or connecting rods or links-may be milled or profiled along their lengthwise edges andaround their one end and in some cases around or partly around their ends automatically at one fixing or setting of the article.

We attain our object by the mechanism illustrated in the accompanying drawings, in which- Figure l is a front view of such portions of a machine which embrace this our invention.

Fig. 2 is a similar end View of the invention. Fig. 3 is a part sectional plan View showing the locking device, 850., as seen on line A B, Fig. 1. Fig. 4 is an end View in detail of the former and its controlling-roller, 850.

Similar numbers refer to similar parts throughout the several views.

The machine consists, broadly, as follows: Upon a suitable frame 7 is mounted a slidebed 8, upon which again is carried a saddle 9, and upon which again is carried the horizontal sliding piece 10,Whose one end is adapted to and carries a'vertical sliding piece 11. The horizontal sliding pieceis held forward in one direction bya chain 12, passing therefrom over a pulley 13, and at whose lower end is a weight 14. The working of the vertical slide 11 is effected by means of a screw 15, operated, preferably, from the top by means of a vertical spindle 16,which is connected to the said screw by spur-wheels 17 and 18. The I said vertical spindle 16 is actuated by suitable gearing, such as bevel-wheels 19 and 20 and pulley 21. Upon the vertical slide-piece 11 are formed bearings 22 to carry a transverse rotating or part-rotating spindle 23, which said rotation may also be effected by the aforesaid vertical spindle 16 by means of worm 24 gearing into wheel 25; but both in this case and also in the case of the spur-gearing 17 and 18 for driving the screw 15 they are driven by frictional contact at 26 and at 27, so that when the resistant force reaches a certain point the driving shall slip. Upon the one end of the transverse rotating spindle 23 is mounted a chuck-plate 28, upon which may be secured a former 29 and the work 30 to be operated upon, such work being so secured that the eye or center 31 at its one end is concentric with the spindle 23. This rotating spindle is provided with a locking device, so that it may be locked in given positions during its vertical movement, but may be released at given positions to permit of its rotating motion. This may be done by having upon the periphery of the plate 28 notches 32 33, &c.,into any one of which a detent 34 may engage,which is carried or pivoted upon the bracket 35 upon the slide 11. This detent is operated by the motion of the slide 11. The milling-cutter 36 is carried in spindle 37 upon head-stock 38 and driven by pulley 39. The dummy-roller 40 is carried upon bracket 41, which is fixed upon the bed.

The operation of the mechanism so far described is as follows: The vertical sliding piece 11 is lowered until the highest point 42 of the one side of the article 30 is brought in line with the cutter, the position of which latter is shown in dotted lines in Fig. 4. The

machine is then started, and the slide 11 rides as the Work proceeds. As it thus proceeds any horizontal deviation in the shape of the article 30 is accommodated by the horizontal yielding of the horizontal slide 10, the Weight 14 keeping it up to its work. The slide 11 having risen until the center of the eye 31 is level with the cutter 36, as seen in Fig. 1, the further upward movement is prevented by the stop-bracket 44 coming in contact with the adjustable stop 45, which is secured to the pillar 46. This resistance overcomes the friction-clutch 27, and hence the wheels 17 and 18 continue to rotate, but the screw 15 does not move. Just before this takes place the end 34 of the detent 34 is depressed by its coming in contact with the stop 47, and thus its front end is lifted clear of the notch 32 in the plate 28. It should now be noticed that the wheel has been always in motion, but could not rotate the spindle 23, by reason of the plate 28 being locked. Now that it is unlocked, however, the wheel 25 rotates the spindle and with it the work 30. This continues until the spindle has made the halfcircle, (or other determined portion of the circle.) At this point the stop-piece -18 in its rotation strikes against the arm 49, which is secured to the pillar 46, and in so doing partly turns it around, so that the stop 45 is moved from above the bracket 4%,and at the same time or slightly in advance the stop 4:7 is thereby moved from off the detent end 34. When the detent is thus released, it is again pushed into the notch 33 by the spring 50. The rotation of the spindle 23 is now again checked and the slide 11 free to continue its upward movement until the milling has been completed along the opposite side of the article 30, when the machine may be stopped by withdrawing the driving-nut 51, which engages with the screw 15 (see Fig. 3) by means of the lever 52. The sliding piece 11 is preferably balanced by means of weight 53, connected by chain 54:.

In some cases similar articles may have a part-rounded end at each end, in which case it may be desirable to profile it also around both ends. This may be done by resetting the article upon the plate so as to bring the unwrought end into central position of the spindle, when the rotary profiling may, as before, be proceeded with. V

It will be clear that the order of the horizontal and vertical slides may be reversed or modified without affecting the principle of the arrangement.

What we claim, and desire to secure by Letters Patent, is-

1. In profiling-machines the combination with the horizontal sliding piece 10, of the vertical slide 11, carrying spindle 23 and former 20 with the latch 34 releasing stop 17 stop-piece 4L8 operating arm 49 and clutches 26 and 27 with their necessary driving and resisting mechanism the whole mounted upon suitable frame 7 bed 8 with head-stock 38 carrying tool 36 all substantially as set forth and shown and for the purposes specified.

2. The slide 11, with latch 34:, and stopbracket l4: engaging respectively with stops 47 and 115 for the simultaneous control of the vertical movement of slide and the rotation of spindle 23 substantially as shown and described.

3. The spindle 23, and chuck-plate 28, provided with a stop 48 in combination with the reversing-arm e9, bracket 4i and stop 45, all substantially as set forth and shown.

THOMAS WEBSTER. ARTHUR EDWARD BENNETT.

Vitnesses:

O. HAYWARD POWELL, ERNEST WV. JONES. 

